Parasites, Hosts and Diseases

"Sung-Hee Hong"

Brief Communications

Molecular Prevalence and Genotypes of Cryptosporidium parvum and Giardia duodenalis in Patients with Acute Diarrhea in Korea, 2013-2016: Da-Won Ma, Myoung-Ro Lee, Sung-Hee Hong, Shin-Hyeong Cho, Sang-Eun Lee; Korean J Parasitol 2019;57(5):531-536.
Published online October 31, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.5.531

Abstract
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Cryptosporidium parvum and Giardia duodenalis are the main diarrhea-causing parasitic pathogens; however, their prevalence in Korea is unknown. Here, we conducted a survey to determine the prevalence and genotype distribution of these 2 pathogens causing acute diarrhea in 8,571 patients hospitalized in 17 Regional Institute of Health Environment sites in Korea, during 2013-2016. C. parvum and G. duodenalis were detected and genotyped by nested PCR, and the isolate were molecularly characterized by sequencing the glycoprotein 60 (Gp60) and β-giardin genes, respectively. The overall prevalence of C. parvum and G. duodenalis was 0.37% (n=32) and 0.55% (n=47), respectively, and both pathogens were more prevalent in children under 9 years old. Molecular epidemiological analysis showed that the C. parvum isolates belonged to the IIa family and were subtyped as IIaA13G2R1, IIaA14G2R1, IIaA15G2R1, and IIaA18G3R1. Analysis of the β-giardin gene fragment from G. duodenalis showed that all positive strains belong to assemblage A. This is the first report on the molecular epidemiology and subtyping of C. parvum and G. duodenalis in such a large number of diarrheal patients in Korea. These results highlight the need for continuous monitoring of these zoonotic pathogens and provide a basis for implementing control and prevention strategies. Further, the results might be useful for epidemiological investigation of the source of outbreak.

Citations

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An Epidemiology Study on Distribution of Giardia lamblia in Incheon City
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Biomedical Science Letters.2025; 31(2): 218. CrossRef
Cryptosporidium and cryptosporidiosis: An update of Asian perspectives in humans, water and food, 2015–2025
Shahira Abdelaziz Ali Ahmed, Sonia Boughattas, Mohammad Reza Mahmoudi, Huma Khan, Simuzar Mamedova, Ardra Namboodiri, Frederick R. Masangkay, Panagiotis Karanis
Current Research in Parasitology & Vector-Borne Diseases.2025; 8: 100311. CrossRef
Detection and molecular characterization of Cryptosporidium spp. in dairy calves in Lisbon and Tagus Valley, Portugal
Mariana Louro, Ricardo Bexiga, Isabel Pereira da Fonseca, Jacinto Gomes
Veterinary Parasitology: Regional Studies and Reports.2024; 47: 100964. CrossRef
Epidemiological investigation of Cryptosporidium in children with diarrhea in middle Inner Mongolia, China
Wenhui Guo, Xinyu Xue, Ruifeng Li, Ru Liang, Zixuan Wang, Jiashan Qin, Chao Duan, Tieyun Chen, Xinlei Yan
Acta Tropica.2024; 254: 107177. CrossRef
Follow-up investigation into Cryptosporidium prevalence and transmission in Western European dairy farms
Sumaiya Hoque, Pedro Pinto, Cláudia A. Ribeiro, Evi Canniere, Yvonne Daandels, Martine Dellevoet, Anne Bourgeois, Ourida Hammouma, Paul Hunter, Eleni Gentekaki, Martin Kváč, Jérôme Follet, Anastasios D. Tsaousis
Veterinary Parasitology.2023; 318: 109920. CrossRef
Outbreak of severe diarrhea due to zoonotic Cryptosporidium parvum and C. xiaoi in goat kids in Chungcheongbuk-do, Korea
Ah-Young Kim, Badriah Alkathiri, Subin Lee, Kyung-Duk Min, Soochong Kim, Sang-Myeong Lee, Wan-Kyu Lee, Dongmi Kwak, Seung-Hun Lee
Parasitology Research.2023; 122(9): 2045. CrossRef
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Yaqiong Guo, Una Ryan, Yaoyu Feng, Lihua Xiao
Trends in Parasitology.2022; 38(4): 335. CrossRef
Distribution of Cryptosporidium parvum subgenotypes in pre-weaned calves in Germany
Franziska Göhring, Matthias Lendner, Arwid Daugschies
Veterinary Parasitology: Regional Studies and Reports.2022; 36: 100806. CrossRef
Annual Report on the External Quality Assessment Scheme for Clinical Parasitology in Korea (2020–2021)
Jihu Jeon, Eun Jeong Won, Kyung Hwan Byeon, Yu Jeong Lee, Moon-Ju Kim, Myung Geun Shin, Jong Hee Shin
Journal of Laboratory Medicine and Quality Assurance.2022; 44(4): 185. CrossRef
Clinical cases of zoonotic Cryptosporidium parvum (subtype IIdA15G1) infections in Korean goats
J Kim, K Lee, SG Roh, HY Kim, JW Kim, BJ So, EJ Choi
Veterinární medicína.2022; 67(3): 156. CrossRef
Causes of acute gastroenteritis in Korean children between 2004 and 2019
Eell Ryoo
Clinical and Experimental Pediatrics.2021; 64(6): 260. CrossRef
Clinical and Laboratory Diagnosis of Cryptosporidiosis among Children with Acute Gastroenteritis at a Tertiary Hospital, Cairo, Egypt
Mohammad Ashraf Abdel Wahed, Yasmine Elsayed Abdelrahman Shehab, Hanan Mahmoud Abou-Seri, Yosra Mohamed Mohsen Awad
Journal of Tropical Pediatrics.2021;[Epub] CrossRef
Giardia duodenalis Virulence — “To Be, or Not To Be”
Raúl Argüello-García, M. Guadalupe Ortega-Pierres
Current Tropical Medicine Reports.2021; 8(4): 246. CrossRef
Cross-Border Investigations on the Prevalence and Transmission Dynamics of Cryptosporidium Species in Dairy Cattle Farms in Western Mainland Europe
Pedro Pinto, Cláudia A. Ribeiro, Sumaiya Hoque, Ourida Hammouma, Hélène Leruste, Sébastien Détriché, Evi Canniere, Yvonne Daandels, Martine Dellevoet, Janine Roemen, Anne Barbier Bourgeois, Martin Kváč, Jérôme Follet, Anastasios D. Tsaousis
Microorganisms.2021; 9(11): 2394. CrossRef
Asymptomatic Cryptosporidium infections in ewes and lambs are a source of environmental contamination with zoonotic genotypes of Cryptosporidium parvum
Léa Bordes, Pauline Houert, Damien Costa, Loïc Favennec, Corinne Vial-Novella, Francis Fidelle, Christelle Grisez, Françoise Prévot, Philippe Jacquiet, Romy Razakandrainibe
Parasite.2020; 27: 57. CrossRef
Report of the Korean Association of External Quality Assessment Service on Clinical Parasitology (2018–2019)
Suhak Jeon, Eun Jeong Won, Yu Jeong Lee, Moon-Ju Kim, Myung Geun Shin, Jong Hee Shin
Journal of Laboratory Medicine and Quality Assurance.2020; 42(4): 177. CrossRef

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Serological and Molecular Detection of Toxoplasma gondii and Babesia microti in the Blood of Rescued Wild Animals in Gangwon-do (Province), Korea: Sung-Hee Hong, Hee-Jong Kim, Young-Il Jeong, Shin-Hyeong Cho, Won-Ja Lee, Jong-Tak Kim, Sang-Eun Lee; Korean J Parasitol 2017;55(2):207-212.
Published online April 30, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.2.207

Abstract
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Infections of Toxoplasma gondii and Babesia microti are reported in many wild animals worldwide, but information on their incidence and molecular detection in Korean wild fields is limited. In this study, the prevalence of T. gondii and B. microti infection in blood samples of 5 animal species (37 Chinese water deer, 23 raccoon dogs, 6 roe deer, 1 wild boar, and 3 Eurasian badgers) was examined during 2008-2009 in Gangwon-do (Province), the Republic of Korea (=Korea) by using serological and molecular tests. The overall seropositivity of T. gondii was 8.6% (6/70); 10.8% in Chinese water deer, 4.3% in raccoon dogs, and 16.7% in roe deer. PCR revealed only 1 case of T. gondii infection in Chinese water deer, and phylogenic analysis showed that the positive isolate was practically identical to the highly pathogenetic strain type I. In B. microti PCR, the positive rate was 5.7% (4/70), including 2 Chinese water deer and 2 Eurasian badgers. Phylogenetic analysis results of 18S rRNA and the β-tubulin gene showed that all positive isolates were US-type B. microti. To our knowledge, this is the first report of B. microti detected in Chinese water deer and Eurasian badger from Korea. These results indicate a potentially high prevalence of T. gondii and B. microti in wild animals of Gangwon-do, Korea. Furthermore, Chinese water deer might act as a reservoir for parasite infections of domestic animals.

Citations

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Detection of US and Kobe‐type Babesia microti in ticks collected from small mammals of the Republic of Korea
Tae Yun Kim, Seong Yoon Kim, Jiye Seo, Hee IL Lee, Wook‐Gyo Lee, Hyunwoo Kim
Entomological Research.2024;[Epub] CrossRef
Do Babesia microti Hosts Share a Blood Group System Gene Ortholog, Which Could Generate an Erythrocyte Antigen That Is Essential for Parasite Invasion?
Ryan P. Jajosky, Audrey N. Jajosky, Philip G. Jajosky, Sean R. Stowell
Tropical Medicine and Infectious Disease.2024; 9(9): 195. CrossRef
Arthropod-Borne Pathogens in Wild Canids
Valentina Virginia Ebani, Simona Nardoni, Francesca Mancianti
Veterinary Sciences.2023; 10(2): 165. CrossRef
Invasive raccoon (Procyon lotor) and raccoon dog (Nyctereutes procyonoides) as potential reservoirs of tick-borne pathogens: data review from native and introduced areas
Izabella Myśliwy, Agnieszka Perec-Matysiak, Joanna Hildebrand
Parasites & Vectors.2022;[Epub] CrossRef
Evolutionary analysis of Babesia vulpes and Babesia microti-like parasites
Sanghyun Lee, Yeonchul Hong, Dong-Il Chung, Hyung-Kwan Jang, Youn-Kyoung Goo, Xuenan Xuan
Parasites & Vectors.2022;[Epub] CrossRef
Recent epidemiologic and clinical Toxoplasma gondii infections in wild canids and other carnivores: 2009–2020
Jitender P. Dubey, Fernando H.A. Murata, Camila K. Cerqueira-Cézar, Oliver C.H. Kwok
Veterinary Parasitology.2021; 290: 109337. CrossRef
Epidemiologic and Public Health Significance of Toxoplasma gondii Infections in Venison: 2009–2020
J. P. Dubey, F. H. A. Murata, C. K. Cerqueira-Cézar, O. C. H. Kwok
Journal of Parasitology.2021;[Epub] CrossRef
Molecular investigation of tick-borne pathogens in ticks removed from tick-bitten humans in the southwestern region of the Republic of Korea
Mi Seon Bang, Choon-Mee Kim, Sang-Hyun Pyun, Dong-Min Kim, Na Ra Yun, Martin Chtolongo Simuunza
PLOS ONE.2021; 16(6): e0252992. CrossRef
Animal reservoirs of zoonotic Babesia species: A global systematic review and meta-analysis of their prevalence, distribution and species diversity
Solomon Ngutor Karshima, Magdalene Nguvan Karshima, Musa Isiyaka Ahmed
Veterinary Parasitology.2021; 298: 109539. CrossRef
Molecular evidence of zoonotic Babesia species, other than B. microti, in ixodid ticks collected from small mammals in the Republic of Korea
Tae Yun Kim, Seong Yoon Kim, Tae‐Kyu Kim, Hee IL Lee, Shin‐Hyeong Cho, Wook‐Gyo Lee, Hyunwoo Kim
Veterinary Medicine and Science.2021; 7(6): 2427. CrossRef
A Review of Zoonotic Babesiosis as an Emerging Public Health Threat in Asia
Sabir Hussain, Abrar Hussain, Muhammad Umair Aziz, Baolin Song, Jehan Zeb, David George, Jun Li, Olivier Sparagano
Pathogens.2021; 11(1): 23. CrossRef
The global seroprevalence of Toxoplasma gondii in deer from 1978 to 2019: A systematic review and meta-analysis
Ao Zeng, Qing-Long Gong, Qi Wang, Chun-Ren Wang, Xiao-Xuan Zhang
Acta Tropica.2020; 208: 105529. CrossRef
Molecular Detection of Toxoplasma Gondii in Haemaphysalis Ticks in Korea
Ju Yeong Kim, You Shine Kwak, In-Yong Lee, Tai-Soon Yong
The Korean Journal of Parasitology.2020; 58(3): 327. CrossRef
Molecular detection of Toxoplasma gondii in opossums from Southeastern, Brazil
Marcos Antônio Bezerra-Santos, Bárbara Cristina Félix Nogueira, Ricardo Seiti Yamatogi, Artur Kanadani Campos
Journal of Parasitic Diseases.2020; 44(3): 661. CrossRef
Molecular Detection of Arthropod-Borne Pathogens in Eurasian Badgers (Meles meles) from the United Kingdom
Lisa Guardone, Valentina Virginia Ebani, Ranieri Verin, Simona Nardoni, Antonio Consolazione, Malcolm Bennett, Francesca Mancianti
Animals.2020; 10(3): 446. CrossRef
Current Status of Tick-Borne Diseases in South Korea
Jae Hyoung Im, JiHyeon Baek, Areum Durey, Hea Yoon Kwon, Moon-Hyun Chung, Jin-Soo Lee
Vector-Borne and Zoonotic Diseases.2019; 19(4): 225. CrossRef
Detection and characterization of an emerging type of Babesia sp. similar to Babesia motasi for the first case of human babesiosis and ticks in Korea
Sung-Hee Hong, Seong-Yoon Kim, Bong Goo Song, Jong Yul Roh, Chong Rae Cho, Chul-Nam Kim, Tae-Hyun Um, Yee Gyung Kwak, Shin-Hyeong Cho, Sang-Eun Lee
Emerging Microbes & Infections.2019; 8(1): 869. CrossRef

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Molecular Detection and Seroprevalence of Babesia microti among Stock Farmers in Khutul City, Selenge Province, Mongolia: Sung-Hee Hong, Davaasuren Anu, Young-Il Jeong, Davaajav Abmed, Shin-Hyeong Cho, Won-Ja Lee, Sang-Eun Lee; Korean J Parasitol 2014;52(4):443-447.
Published online August 29, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.4.443

Abstract
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Babesiosis is an emerging tick-borne disease in humans worldwide; however, little is known about the frequency of infection or prevalence of this disease in other parts of the world, excluding North America. In this study, we aimed to investigate Babesia microti infection frequency in a human population in Mongolia. One hundred blood samples were collected from stock farmers living in Khutul city of Selenge province, Mongolia. The sera and DNA from blood samples were evaluated for the presence of B. microti infection by using indirect fluorescent antibody (IFA) tests and PCR. The positive detection rates obtained using the IFA tests and PCR assays were 7% and 3%, respectively. This study is the first to detect of B. microti infections based on antibody seroprevalence or PCR assays for the presence of B. microti DNA in a Mongolian population.

Citations

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Babesia microti Transmission Risk Through Ixodes persulcatus Ticks in Selenge, Mongolia, and Investigation of Its Infectivity in Rodents
Davganyam Bayarmagnai, Gombodash Ganbat, Ariunbold Munkhtsetseg, Mygarmarsuren Odonchimeg, Dashzevge Erdenechimeg, Tserennyam Davaajargal, Zorigt Uurtsaikh, Khandsuren Naranbaatar, Damdinsuren Boldbaatar, Bumduuren Tuvshintulga
Vector-Borne and Zoonotic Diseases.2025;[Epub] CrossRef
Transfusion-transmitted Babesia spp.: a changing landscape of epidemiology, regulation, and risk mitigation
Steven J. Drews, Anne M. Kjemtrup, Peter J. Krause, Grayson Lambert, David A. Leiby, Antoine Lewin, Sheila F. O'Brien, Christian Renaud, Laura Tonnetti, Evan M. Bloch, Romney M. Humphries
Journal of Clinical Microbiology.2023;[Epub] CrossRef
Global meta-analysis onBabesiainfections in human population: prevalence, distribution and species diversity
Solomon Ngutor Karshima, Magdalene Nguvan Karshima, Musa Isiyaku Ahmed
Pathogens and Global Health.2022; 116(4): 220. CrossRef
Emerging Human Babesiosis with “Ground Zero” in North America
Yi Yang, Jevan Christie, Liza Köster, Aifang Du, Chaoqun Yao
Microorganisms.2021; 9(2): 440. CrossRef
Preventing Transfusion-Transmitted Babesiosis
Evan M. Bloch, Peter J. Krause, Laura Tonnetti
Pathogens.2021; 10(9): 1176. CrossRef
A Review of Zoonotic Babesiosis as an Emerging Public Health Threat in Asia
Sabir Hussain, Abrar Hussain, Muhammad Umair Aziz, Baolin Song, Jehan Zeb, David George, Jun Li, Olivier Sparagano
Pathogens.2021; 11(1): 23. CrossRef
The Global Emergence of Human Babesiosis
Abhinav Kumar, Jane O’Bryan, Peter Krause
Pathogens.2021; 10(11): 1447. CrossRef
Hard ticks and tick-borne pathogens in Mongolia—A review
Jiří Černý, Buyantogtokh Buyannemekh, Tersia Needham, Gantulga Gankhuyag, Dashzeveg Oyuntsetseg
Ticks and Tick-borne Diseases.2019; 10(6): 101268. CrossRef
The Babesia observational antibody (BAOBAB) study: A cross-sectional evaluation of Babesia in two communities in Kilosa district, Tanzania
Evan M. Bloch, Zakayo Mrango, Mabula Kasubi, Jerusha Weaver, Aleksandra Mihailovic, Beatriz Munoz, Anna Weimer, Andrew Levin, Laura Tonnetti, Jeffrey M. Linnen, Vanessa Brès, Douglas E. Norris, Giovanna Carpi, Sheila K. West, Christine A Petersen
PLOS Neglected Tropical Diseases.2019; 13(8): e0007632. CrossRef
Some aspects on tick species in Mongolia and their potential role in the transmission of equine piroplasms, Anaplasma phagocytophilum and Borrelia burgdorferi L.
Myadagsuren Narankhajid, Chultemsuren Yeruult, Agvaandaram Gurbadam, Jigjav Battsetseg, Stephan W. Aberle, Badamdorj Bayartogtokh, Anja Joachim, Georg Gerhard Duscher
Parasitology Research.2018; 117(11): 3557. CrossRef
Case report of the patient source of the Babesia microti R1 reference strain and implications for travelers
Philipp Stahl, Yves Poinsignon, Pascal Pouedras, Vasilica Ciubotaru, Laurence Berry, Brinda Emu, Peter J Krause, Choukri Ben Mamoun, Emmanuel Cornillot
Journal of Travel Medicine.2018;[Epub] CrossRef
A pilot serosurvey of Babesia microti in Chinese blood donors
E. M. Bloch, Y. Yang, M. He, L. Tonnetti, Y. Liu, J. Wang, Y. Guo, H. Li, D. A. Leiby, H. Shan
Vox Sanguinis.2018; 113(4): 345. CrossRef
Babesia microti and Malaria Infection in Africa: A Pilot Serosurvey in Kilosa District, Tanzania
Evan M. Bloch, Mabula Kasubi, Andrew Levin, Zakayo Mrango, Jerusha Weaver, Beatriz Munoz, Sheila K. West
The American Journal of Tropical Medicine and Hygiene.2018; 99(1): 51. CrossRef
A novel quantitative PCR detects Babesia infection in patients not identified by currently available non-nucleic acid amplification tests
Lavoisier Akoolo, Samantha Schlachter, Rasel Khan, Laura Alter, Albert D. Rojtman, Kristine Gedroic, Purnima Bhanot, Nikhat Parveen
BMC Microbiology.2017;[Epub] CrossRef
Wide Distribution and Genetic Diversity of Babesia microti in Small Mammals from Yunnan Province, Southwestern China
Zi-Hou Gao, Tao-Hua Huang, Bao-Gui Jiang, Na Jia, Zheng-Xiang Liu, Zong-Ti Shao, Rui-Ruo Jiang, Hong-Bo Liu, Ran Wei, Yu-Qiong Li, Hong-Wu Yao, Michael E. von Fricken, Jia-Fu Jiang, Chun-Hong Du, Wu-Chun Cao, Joseph M. Vinetz
PLOS Neglected Tropical Diseases.2017; 11(10): e0005898. CrossRef
Detection of Babesia venatorum, Anaplasma phagocytophilum and Candidatus Neoehrlichia mikurensis in Ixodes persulcatus ticks from Mongolia
Carolin Karnath, Anna Obiegala, Stephanie Speck, Sandra Essbauer, Henri Derschum, Holger Scholz, Daniel Kiefer, Damdindorj Tserennorov, Otgonbataar Dashdavaa, Nyamdorj Tsogbadrakh, Battsetseg Jigjav, Martin Pfeffer
Ticks and Tick-borne Diseases.2016; 7(2): 357. CrossRef
Experimental transmission of Babesia microti by Rhipicephalus haemaphysaloides
Lan-Hua Li, Dan Zhu, Chen-Chen Zhang, Yi Zhang, Xiao-Nong Zhou
Parasites & Vectors.2016;[Epub] CrossRef
Ixodes persulcatus Ticks as Vectors for the Babesia microti U.S. Lineage in Japan
Aya Zamoto-Niikura, Shigeru Morikawa, Ken-Ichi Hanaki, Patricia J. Holman, Chiaki Ishihara, P. D. Schloss
Applied and Environmental Microbiology.2016; 82(22): 6624. CrossRef
The PCR detection and phylogenetic characterization of Babesia microti in questing ticks in Mongolia
Bumduuren Tuvshintulga, Thillaiampalam Sivakumar, Badgar Battsetseg, Sandag-ochir Narantsatsaral, Batsaikhan Enkhtaivan, Banzragch Battur, Kyoko Hayashida, Kazuhiro Okubo, Takahiro Ishizaki, Noboru Inoue, Ikuo Igarashi, Naoaki Yokoyama
Parasitology International.2015; 64(6): 527. CrossRef

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21 Web of Science
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Prevalence of Toxoplasma gondii Infection in Household Cats in Korea and Risk Factors: Sung-Hee Hong, Young-Il Jeong, Jae-Young Kim, Shin-Hyeong Cho, Won-Ja Lee, Sang-Eun Lee; Korean J Parasitol 2013;51(3):357-361.
Published online June 30, 2013; DOI: https://doi.org/10.3347/kjp.2013.51.3.357

Abstract
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Several epidemiological surveys have reported the prevalence of Toxoplasma gondii infection in stray cats in Korea, but little information is available on T. gondii infection in household cats. The aim of the present study was to assess the prevalence and risk factors of T. gondii infection among household cats reared in Seoul, Korea. A total of 474 blood samples were collected from clinically healthy household cats. All samples were tested using ELISA and PCR. The risk factor analysis was based on a questionnaire filled out by the owners. The overall positive rate for ELISA and PCR assays was 2.2% (10/437) and 2.1% (10/474), respectively. With regard to the origin of cats, the positive rates among cats adopted from the animal shelter and veterinary clinic for stray cats were significantly different (P<0.05). Our study demonstrated that the positive rate of T. gondii infection in household cats was low and that this low prevalence was assumed to be associated with keeping the cats indoors and restriction of eating raw food and uncooked meat. Therefore, we suggest that the owners check the origin of the cats prior to adoption to prevent infection of other animals, including humans.

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Gunilla Ölmedal, Linda Toresson, Mary Nehring, Jennifer Hawley, Sue Vande Woude, Michael Lappin
Acta Veterinaria Scandinavica.2025;[Epub] CrossRef
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Kassiopi Christina G. Kokkinaki, Manolis N. Saridomichelakis, Mathios E. Mylonakis, Leonidas Leontides, Panagiotis G. Xenoulis
Animals.2023; 13(7): 1173. CrossRef
Establishment and application of an iELISA detection method for measuring apical membrane antigen 1 (AMA1) antibodies of Toxoplasma gondii in cats
Yafan Gao, Yu Shen, Jiyuan Fan, Haojie Ding, Bin Zheng, Haijie Yu, Siyang Huang, Qingming Kong, Hangjun Lv, Xunhui Zhuo, Shaohong Lu
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Seroprevalence and Risk Factors of Toxoplasma gondii Infection among Cat Sitters in Korea
Bong-Kwang Jung, Hyemi Song, Sang-Eun Lee, Min-Jae Kim, Jaeeun Cho, Eun-Hee Shin, Jong-Yil Chai
The Korean Journal of Parasitology.2017; 55(2): 203. CrossRef
Serological and Molecular Detection of Toxoplasma gondii and Babesia microti in the Blood of Rescued Wild Animals in Gangwon-do (Province), Korea
Sung-Hee Hong, Hee-Jong Kim, Young-Il Jeong, Shin-Hyeong Cho, Won-Ja Lee, Jong-Tak Kim, Sang-Eun Lee
The Korean Journal of Parasitology.2017; 55(2): 207. CrossRef
Molecular investigation on the occurrence of Toxoplasma gondii oocysts in cat feces using TOX-element and ITS-1 region targets
W. Chemoh, N. Sawangjaroen, V. Nissapatorn, N. Sermwittayawong
The Veterinary Journal.2016; 215: 118. CrossRef
<i>Toxoplasma gondii</i> B1 Gene Detection in Feces of Stray Cats around Seoul, Korea and Genotype Analysis of Two Laboratory-Passaged Isolates
Bong-Kwang Jung, Sang-Eun Lee, Hyemi Lim, Jaeeun Cho, Deok-Gyu Kim, Hyemi Song, Min-Jae Kim, Eun-Hee Shin, Jong-Yil Chai
The Korean Journal of Parasitology.2015; 53(3): 259. CrossRef
A high seroprevalence ofToxoplasma gondiiantibodies in a population of feral cats in the Western Cape province of South Africa
Kenneth Hammond-Aryee, Monika Esser, Lesley van Helden, Paul van Helden
Southern African Journal of Infectious Diseases.2015; 30(4): 141. CrossRef

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Prevalence of Enterobius vermicularis among Preschool Children in Muan-gun, Jeollanam-do, Korea: Sung-Hee Hong, Young-Il Jeong, Jin-Hee Lee, Shin-Hyeong Cho, Won-Ja Lee, Sang-Eun Lee; Korean J Parasitol 2012;50(3):259-262.
Published online August 13, 2012; DOI: https://doi.org/10.3347/kjp.2012.50.3.259

Abstract
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We assessed the prevalence of Enterobius vermicularis infection and changes in the egg positive rate (EPR) over 1-year time, using the adhesive cellophane-tape perianal swab method in 2,347 preschool children in Muan-gun, Jeollanam-do, Republic of Korea in 2008 and 2009. The overall EPR for E. vermicularis was 4.1% in 2008 and 4.5% in 2009. A study population of 389 children was repeatedly examined for 2 years. Within this group, the EPR in 2009 was twice higher than in 2008, and the EPR of the group of 5-7-year-old children was significantly higher than that of other age groups. Moreover, in the group of 5-7-year-old children in 2009, the rates of positive and negative conversion were significantly higher and lower, respectively, than in other age groups. Conclusively, enterobiasis was prevalent during 2008-2009 among preschool children in Muan-gun, Jeollanam-do, and the increased EPR in 2009 was due to an increase in newly acquired infections among 5-7-year-old children.

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Positive rates for Enterobius vermicularis eggs among preschool children in Yeosu-si, Jeollanam-do, Korea (2017-2021)
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Parasites, Hosts and Diseases.2023; 61(1): 84. CrossRef
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Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai
The Korean Journal of Parasitology.2021; 59(4): 421. CrossRef
Enterobius vermicularis infection and its risk factors among pre-school children in Taipei, Taiwan
Kuang-Yao Chen, Chuan-Min Yen, Kao-Pin Hwang, Lian-Chen Wang
Journal of Microbiology, Immunology and Infection.2018; 51(4): 559. CrossRef
The frequency of Enterobius vermicularis infection in children from Wielkopolska Voivodeship
Marta Siekierska, Karolina Kot, Natalia Łanocha-Arendarczyk, Danuta Kosik-Bogacka
Diagnostyka Laboratoryjna.2018; 54(1): 5. CrossRef
Prevalence ofEnterobius vermicularisamong preschool children in 2003 and 2013 in Xinxiang city, Henan province, Central China
Shuai Wang, Zhijun Yao, Yichen Hou, Dong Wang, Haizhu Zhang, Jingbo Ma, Luwen Zhang, Shiguo Liu
Parasite.2016; 23: 30. CrossRef
Risk factors for Enterobius vermicularis infection in children in Gaozhou, Guangdong, China
Hong-Mei Li, Chang-Hai Zhou, Zhi-Shi Li, Zhuo-Hui Deng, Cai-Wen Ruan, Qi-Ming Zhang, Ting-Jun Zhu, Long-Qi Xu, Ying-Dan Chen
Infectious Diseases of Poverty.2015;[Epub] CrossRef

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Detection of Ocular Toxoplasma gondii Infection in Chronic Irregular Recurrent Uveitis by PCR: Sang-Eun Lee, Sung-Hee Hong, Seong-Ho Lee, Young-Il Jeong, Su Jin Lim, Oh Woong Kwon, Sun Hyun Kim, Young Sung You, Shin-Hyeong Cho, Won-Ja Lee; Korean J Parasitol 2012;50(3):229-231.
Published online August 13, 2012; DOI: https://doi.org/10.3347/kjp.2012.50.3.229

Abstract
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Toxoplasma gondii is a zoonotic parasite resulting in human infections and one of the infectious pathogens leading to uveitis and retinochoroiditis. The present study was performed to assess T. gondii infection in 20 ocular patients with chronic irregular recurrent uveitis (20 aqueous humor and 20 peripheral blood samples) using PCR. All samples were analyzed by nested PCR targeting a specific B1 gene of T. gondii. The PCR-positive rate was 25% (5/20), including 5% (1) in blood samples, 25% (5) in aqueous humor samples, and 5% (1) in both sample types. A molecular screening test for T. gondii infection in ocular patients with common clinical findings of an unclear retinal margin and an inflammatory membrane over the retina, as seen by fundus examination, may be helpful for early diagnosis and treatment.

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The Korean Journal of Parasitology.2012; 50(4): 287. CrossRef

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Comparison of Egg Positive Rates of Enterobius vermicularis among Preschool Children in Three Korean Localities: Sung-Hee Hong, Sang-Eun Lee, Young-Il Jeong, Won-Ja Lee, Shin-Hyeong Cho; Korean J Parasitol 2011;49(4):441-443.
Published online December 16, 2011; DOI: https://doi.org/10.3347/kjp.2011.49.4.441

Abstract
PDF

This survey was performed to investigate and compare egg positive rates (EPRs) of Enterobius vermicularis among preschool children in 3 Korean localities (Chuncheon-si, Inje-gun, and Paju-si) in 2008. A total of 7,048 preschool children were examined. Overall, the total EPR was 4.0%; the EPR was the highest in Chuncheon-si (5.6%), followed by Inje-gun (4.5%) and Paju-si (3.4%). The EPR of boys (4.9%) was higher than that of girls (3.1%). The EPR significantly increased with age, with the highest observed in 5~7-year-olds. These findings demonstrate that E. vermicularis infection is widely prevalent among preschool children in Chuncheon-si, Inje-gun, and Paju-si, Republic of Korea.

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